Variation in the position of CF3 groups in several synthesized aromatic Ge compounds has been studied by 19F NMR spectroscopy. The compounds may be formulated as GeAr2Cl2, GeArCl3 and GeAr"2Cl2, Ar =2,4,6-(CF3)3C6H2,Ar'=2,6-(CF3)2C6H3,Ar"=2,4-(CF3)2C6H3. Ar,Ar' and Ar" are all bulky,strongly electron-withdrawing ligands. 19F NMR studies of the variation in position of CF3 substituents in these compounds as revealed by chemical shifts may be correlated with intra -molecular Ge…F interactions derived from single-crystal X-ray diffraction data. These interactions are considered to play an important role in the stabilization of these compounds.%GeCl4与ArLi和Ar′Li (Ar″Li与Ar′Li 1:1的混合物)反应生成化合物GeAr2Cl2,GeArCl3和GeAr"2Cl2,测定了GeAr2Cl2和GeAr"2Cl2的晶体结构,并进行了19F NMR表征.
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